Apparatus for cutting paper, &amp;c.



P. G. E. DANIEL & G. A. H. BULLOCK.

APPARATUS FOR CUTTING PAPER, 4w.

APPLIGATION FILED AUG. 19, 1908.

Patented Nov. 23, 1909.

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UAW/P455 HHBusocK P. G. E. DANIEL & G. A. H. BULLOCK. APPARATUS FORCUTTING PAPER, 6w.

APPLICATION FILED 11m. 19, 1908.

940,862. I v PatentedNov. 23, 1909.

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APPARATUS FOR CUTTING PAPER, 8:0. AYPLICATION PILED'AUG. 19, 1908.940,862, Patented Nov. 23, 1909.

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UNITED STATES PATENT ()FFTQE.

PERCY GORDON EOKERSLEY DANIEL. 0F CLEVEDON, AND CHARLES ASHTON HENRYBULLOCK, OF LONDON, ENGLAND.

APPARATUS FOR CUTTING PAPER, 85c.

Specification of Letters Patent.

' Patented Nov. 23, 1909.

Application filed. August 19, 1908. Serial No. 449,268.

This invention relates to apparatus for cutting paper, cardboard andother sheet. material, and has for its object to provide 1 novel andeffective means whereby paper or the like can be cut into any desiredpredetermined width or widths as it'is drawn in continuous lengths orotherwise through the 1 apparatus.

Our invention is specially. applicable, among other things, to cuttingthe paper webs used in newspaper and other printing 2 into lesser widthsand to cutting sheets of;

stamps into strips.

Our invention broadly consists of a plu dependent spindle, while eachroller is ar-;

ranged to revolve independently of the others. One of the rollers ineach pair is ofsomewhat greater diameter than the other, while theiropposing ends are in close frictional contact one with the other. thepairs or series of rollers aforesaid (preferably the upper pair) has itsspindle mounted in a movable framework so that such pair or series ofrollers can be moved into position to contact with the second pair orseries of rollers or away from the latter, for the purposes hereinafterreferred to. Each pair or series of cutting rollers is so arranged onits spindle that the roller or rollers of larger diameter in one pair orseries is or are to the right hand side of the smaller roller or rollersof such pair or series, while the other larger roller or rollers of theother pair orseries is in a viceversa position, in relation'to itssmaller fellow or fellows, the cutting or tearing edge of each of suchlarger rollers 'of the one pair or series slightly overlapping thelarger roller of the other pair or series associated with it and beingin close frictional con- One oftact. And in order that this our saidinvention may be more readily understood and carried into practicalefi'ect reference is hereby made to the accompanying sheet ofillustrative drawings wherein Figure 1 is a front elevational view of asimple apparatus embodying the essential features of our invention withthe rollers shown in their operative positions, Fig. 2 is a sideelevational view thereof, Fig. 3 is a side elevational view of a largertype of machine constructed in accordance with our invention the cuttingrollers being shown in position to receive the material to be cut, Fig.4: is a front elevational view thereof,

Figs. 5 and 6 are views illustrating details of construction or thecutting rollers, while Fig. 7 is a view illustrating a slightmodification of our invention.

Referring to these drawings wherein like numerals of reference indicatecorresponding parts wherever occurring through all the figures thenumeral 1 designatesa bed or 5 guide along which the material to be cutpasses. At the front of this bed or guide 1 we mount a spindle 2 whichspindle 2 is non-rotatable and has loosely mounted upon it a pluralityof independently rotatable rollers 3 and i, the rollers 3 beingessentially of somewhat greater diameter than the rollers 4. Arrangedupon a rigid spin dle 5 parallel with the spindle 2 we provide theindependently rotatable rollers 6 and 7 the rollers 6 being of the samediameter as the rollers 3 while the rollers 7 are of the same diameteras the rollers 4. The spin dle 5 carrying as aforesaid the rollers 6 and7 is carried by a movable framework or support 8 so that the rollers 6and 7 can be moved into and out of engagement with the rollers 3 and 4.I

It will be readily seen on reference to the drawings that the largerollers 3 of the one pair or series are arranged to mesh with thesmaller rollers 7 of the other pair or series, while the smaller rollers4c of the one series similarly mesh with the larger rollers 6 of theother series. By this means the opposing ends of the large rollers 3 and6 overlap each other slightly and are arranged .in close frictionalcontact to form a cutting which also serve to compensate for any wearupon these opposing ends while furthermore in order to obviate anydifficulty which may be occasioned by wear upon these parts we mayprovide the rollers 3 and 6 with removable end members 10 and theseremovable members 10 may take the form of rings as shown in Fig. 5adapted to be held in place upon reduced portions of the rollers bymeans of set screws 11, the heads of which lie in countersinkings in thesaid rings 10.

In operation the movable framework or support 8 is raised and thematerial to be cut arranged between the rollers 6 and 7 carried by thisframework and the rollers 3 and 4 of immovable location. The rollers 6and 7 are then allowed to engage upon the rollers 3 and a with thematerial to be out between the upper and lower series of rollers. If thematerial is then drawn through the rollers it will be found that a cleanincisionor clean incisions as the case may beis made in the material andsuch ma terial can be wound upon storage spools such as 12 in aplurality of strips. The degree with which the upper movable rollers 6and 7 bite or engage upon the material between them and the rollers 3and 4: may in some cases require to be adjusted and for this reason wemay provide adjusting devices such for instance as the screw 13, Figs. 3and 4, but in the case of comparatively easily divided material such aspaper it will be found that if the upper series of rollers 6 and 7 arecarried upon a pivoted support such as 14, the weight of the rollerswill themselves cause suflicient bite while it will be readily seen thatif the framework ,7 s or support 14 is pivoted to the bed or guide 40 1in the manner shown in Fig. l the drawing through of the material willitself tend to increase the degree of bite.

It will be understood that where it is desired merely to provide for thedividing of the material into two strips, pairs of rollers are employedto form one cutting or tearing edge while if the material is to be cutinto more than two strips the number of rollers employed must beincreased so as to give the additional cutting or tearing edgesrequired. It will also be clear that the Widths of the strip or stripsinto which the material is out depends upon the widths of the rollersemployed so that in one machine provision can be made for cutting stripsof varying Width within the limits of the machine by providing rollersof various widths. The rollers are preferably made of hardened steelalthough of course we do not limit ourselves to this material but mayemploy any others either alone or together as may be found desirable orconvenient. For instance it may be found in practice that it isdesirable to form some rollers of one material and some of another. r

It will be understood from the foregoing that any desired length ofmaterial can be cut in a continuous manner by means of our invention,while by duplicating to any desired extent the sets or pairs of cuttingrollers before described any desired or convenient number of parallelincisions may be made simultaneously. The said rollers may, if it befound desirable and convenient in practice, be combined with thecalendering rollers at present employed in paper-making plants. In lieuof having all the rollers revolubly mounted on fixed spindles it isclear that certain of the said rollers, may, if desirable revolve withtheir spindles the essential condition being that the rollers arerotatable independently of each other.

In Fig. 7 we have shown a form of device wherein the rollers also serveto feed the material being out. In this case the larger rollers 3 and 6are fixed upon the spindles 2 and ,5 respectively and the spindles 2 and5 are extended to take gear wheels or pinions 15, a handle 16 or itsequivalent being provided to enable the spindles 2 and 5 to be rotated.Where more than two rollers are mounted on each of the spindles 2 and 5we insure close frictional contact between the overlapping edges of thelarger rollers 3 and '6 by dividing one or more of such larger rollersin the center as shown in Fig. 6. When the machine is in operation thetwo parts of the divided roller are forced outward by the lower ends 17of arms 18 pivoted upon the same pivot or spindle 19 the upper ends ofsaid arms being forced apart by means of an adjustable wedge oradjustable wedges 20. The wedge or wedges 20 being preferably carried bya vertically movable bar 21. When it is desired to raise the upperrollers for the purpose of inserting the paper or other material to becut the bar 21 is first raised and this carries the wedge or wedges 20out of operation and the tension spring 22 tends to draw the lower ends17 of the arms 18 and consequently two parts of the divided rollertogether but when the rollers are again engaged for operation and thebar 21 is depressed by the operation of the lever 22 it will readily beseen that the overlapping ends of the larger rollers will be caused tohave close frictional contact.

What we claim as our invention and desire to secure by Letters Patentis 1. In cutting apparatus the combination with one pair of separatelyrotatable rollers each roller of the pair being of a different diameter,of a second pair of similar rotatable rollers capable of frictionallymeshing with the first pair so that the inner end of the larger rollerof the one pair overlaps and frictionally contacts with the inner end ofthe larger roller of the other pair to form a cutting edge, shafts forsaid rollers, and meansfor non-rotatively securing one roller of eachpair to its shaft, substantially as specified.

2. In cutting apparatus the combination with a plurality ofindependently rotatable rollers of difl'erent diameters and fixedlocation, of a plurality of similar rotatable rollers of similarlydifferent diameters arranged parallel with the rollers of fixed locationthe large rollers of the one series being capable of frictional contactwith the smaller rollers of the other series so that the ends of thelarger rollers of the one series partially overlap the opposing ends ofthe larger rollers of the other series to form dividing edges, shaftsfor said rollers, and means for non-rotatively securing one roller ofeach pair to its shaft, the companion roller of each pair being looselymounted substantially as specified.

3. In cutting apparatus the combination with a non-rotatable spindle ofrollers of two different diameters arranged to be capable of rotationside by side upon said spindle, the rollers of one diameter alternatingwith rollers of another diameter, a second non-rotatable spindlearranged parallel with the first spindle, a movable framework carryingsaid second spindle, and a second series of rotatable rollers of twodiiferent diameters carried by this spindle the rollers of one diameteralternating with the rollers of the other diameter said frame-work beingmounted to swing by gravity to bring its set of rollers into engagementwith the companion set of rollers.

4. In cutting apparatus the combination with one pair of separatelyrotatable rollers each roller of the pair being of a different diameterand a second pair of similar rotatable rollers, of a movable frameworkcarrying said second pair of rollers, by the movement of which frameworkthe two pairs of rollers can be engaged by gravity substantially asspecified.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

PERCY GORDON EOKERSLEY DANIEL. CHARLES ASHTON HENRY BULLOCK. Witnesses:

H. D. JAMEsoN, F. L. RAND.

